Lynne Marie Stewart (born December 14, 1946) is an American actress,[1][2] widely known for her performance as Miss Yvonne,[3] the Most Beautiful Woman in Puppet Land.

[5][6] Stewart played several different nurses on the television series M*A*S*H. She had a small part in the 1973 film American Graffiti as Bobbie, who drove the car of girls who pick up Curt (Richard Dreyfuss) in one scene.

She played a variety of characters, including Squiggy's two-timing girlfriend Barbara, on Laverne & Shirley.

She has a recurring role as Charlie's mom, Bonnie Kelly, on the long-running, critically acclaimed series It's Always Sunny in Philadelphia.

[citation needed] In 2011 at the Surflight Theatre, in New Jersey, she appeared in an all-female version of The Odd Couple, starring Cindy Williams and Jo Anne Worley.